Press.



J. H. GROWELL.

PRESS.

APPLICATION FILED 151112.29, 1912.

1,0'Z6,023. Patented Oct. 21, 1913.

and Q. /M

UNITED STATES PATENT @FFESE.

JOHN H. CROWELL, 0F VINEYARD HAVEN, MASSACHUSETTS.

PRESS.

To all whom it may concern:

Be it known that I, JOHN H. CRownLL, a citizen of the United States, residing at Vineyard Haven, in the county of Dukes and State of Massachusetts, have invented a new and useful Press, of which the following is a specification.

The purpose of my invention is to provide a press readily convertible into and usable as a foot press, a screw press, or a combined foot and screw press.

To these ends my invention consists in the new and novel construction combination and arrangement of parts hereinafter described, and shown in the accompanying drawings, in which:

Figure 1 is a front elevation of a press embodying my invention. Figs. 2, 3 and 1 are side elevations, partly in section, of the same.

Like reference letters and numerals indicate like parts in all the views.

In the drawings, A represent-s the table of my press, supported upon legs or standards A and in turn supporting a frame A all of the well known construction. A screw 3 is arranged and adapted to operate vertically through the upper cross member of the frame A and is provided with the common operating handle .9 and counterweight s Said screw is threaded to engage with a nut 1, tapped to receive it, and arranged for vertical sliding movement in said frame in slide-ways formed in the upright-s thereof, as actuated by the screw .9, or otherwise as hereinafter described. Said nut 1 is provided with a notch or recess 2 arranged and adapted to be engaged by an adjustable dog 3 mounted in said frame for horizontal reciprocating movement and provided with an adjusting screw 4 tapped into the upright of said frame. Said dog serves to hold the said nut 1 stationary in said frame when the press is to be used as a screw press, operated by the handle 8 A set-screw -5 tapped through the front of the nut 1 serves, when in contact with the screw 8, to lock said nut and screw together for united movement when the dog 3 is disengaged from the notch 2, in which case the said nut slides in the guide-ways above mentioned, carrying with it said screw 8 in vertical reciprocating movement when the press is operated as a foot press, by the treadle hereinafter described. Said screw 8 extends through beyond and below the nut 1, and a f llower 6 Specification of Letters Patent.

Patented Oct. 21, 1913.

Application filed. March 29, 1912. Serial No. 687,206.

is secured to its lower end and, spaced a distance below said nut, is arranged and adapt ed for reciprocating movement vertically in said guide-ways. I pivotally mount in said frame a treadle 7 arranged with its upper arm extending into and through the space between the nut 1 and the follower 6, and provide the outer end of said arm with a perforation arranged and adapted for the operation therethrough of said screw 8, or for the operation of said treadle without contact with said screw. A set-screw 7 tapped through the front end of the upper arm of the treadle 7 serves, by its engagement with a groove or score 8 in the lower portion of said screw 8, to unite said screw and treadle for conjoint action.

In the practical operation of my invention, when the press is to be used as a screw press operated by the counterbalanced handle 8 the set screw 5 and set screw 7 are withdrawn from contact with the screw s,the dog 3 is by operation of the adjusting screw 4 made to engage the notch 2 in the nut 1, thereby holding the nut stationary in the upper part of the guideways, and allowing the screw 8 to operate freely therethrough, as actuated by the handle 8 in the same manner as the well known screw press is operated. The screw .9 in this case having free movement in the perforation in the upper outer end of the treadle arm Without disturbing or moving the treadle 7 (Fig. 3).

When it is desired to use the press as a foot press operated by the treadle 7, the dog 3 is withdrawn from engagement with the notch 2 and the set screw 7 is withdrawn from notch 8 and the set screw 5 is turned into contact with the screw 8, thereby looking said screw and the nut 1 together for united movement. Operation of the treadle 7 in the usual way then imparts to the nut, 1, screw 8 and follower 6 united vertical movement in both direct-ions (Fig. 2)

When it is desired to use the press as a combined foot and screw press, or in other words, when it is desirable to obtain in a single operation the benefit of both the treadle and screw movements, the dog 3 is made to engage the notch 2, thereby locking the nut 1 immovably in the frame, and the set screw 5 is withdrawn and held out of contact with the screw 5, and the set screw 7 caused to engage the notch 8 thereby uniting the screw 8 and treadle 7 for conjoint action. Operation of the treadle 7 in the usual way causes the follower to move vertically downward and also causes the screw 8 to revolve and move downward through the nut 1 thereby adding the force of the blow of the counterweight s to the result and effect (Fig. 4:).

It is to be understood that wherever in this specification or in the claims I refer to i the uprights and to the cross member connectnig thelr upper ends, I mean to include that form of construction in which the uprlght guldeway carrying member and the upper cross member are integral.

hereinbefore, that whether operated by the treadle 7 or by the counterweighted handle 8 the counterweight 8' will be caused to swing with velocity within a predetermined arc, upon the screw s as a pivot, and that its impetus will be suddenly checked at the end of such movement and will thereby materially and importantly add to the force of the final flow of the follower-carried-die upon the anvil usually located upon the table I A. In other words by my invention I am.-

enabled to utilize to the fullest extent the benefit and advantage of the impetus andweight of both the counterweight s and tance above said follower, a screw extending through said perforated cross member, and

member to depress and raise said follower in the guideways.

2. In a press having a table, uprights carried on said table and provided with guide ways, and also with a perforated upper cross member connecting said uprights, the

combination with said parts of a followerslidably fitted in said guideways, an inter nally threaded nut slidably fitted in the upper part of said uideways and spaced a distance above said ollower, a treadle pivotj ally mounted in said uprights and having It will be noted as a novel and important feature ofmy invention shown and described I its upper arm perforated and extending into the space between said nut and follower, a

screw arranged for operation through said perforated cross member, internally threaded nut and perforated treadle arm, and connecting said nut and follower for united ac tion, and means for connecting said screw to said treadle arm, and other means for binding said :slidable nut upon said screw.

3, In a press having uprights provided with guideways and connected at the upper ends by a perforated cross member, the combination with said parts of an internally threaded nut slidably fitted in said guideways, a follower slidably fitted in said guideways and spaced a distance below said nut, a treadle pivotally mounted in said uprights and pro vid'ed with a perforated upper arm extend into the space between said nut and follower, an externally threaded screw provided with a counterweighted operating handle, and arranged for operation through said cross member, nut and perforated treadle arm, and connecting said .nut and follower for united action.

JOHN H. CROVVELL. Witnesses:

FRED A. SWEET,

PARKER L. Mormon.

copies of this patent may be obtained for five cents each, by addressing the "'Gemmiss'ioner of Patents, 

